Software Development Forum

HI. I'm reading in a wave file and writing it to a sound device using ALSA. Im not a C++ guy (C#) so not very handy with its file I/O methods.. Any idea how do i change : [code]int rc = read(0, buffer, size);[/code] To work with any file i.e. …

Hi, I've been working on this mini project on a WFA. Basically what I'm trying to do is, move files through a checkedListBox. I have the c.listbox and i got the items on it, but I want to have the files moved (only the checked ones) into a pre-defined directory …

I have a windows form application which has a text box and 3 buttons. Now i need to add focus to a button for 1 second, and then add focus to the other button for a second.. like wise to adding focus to all these 3 buttons for 1 second …

Alright, so I got a very unique issue. It combines a little bit of SQL, VB.net Skill, and patience. The program I am trying to make needs to be structured like this. Table 1: Estimates (Details View) Customer ID Employee ID Form Factor Problem Proposed Solution Estimate Acceptance (Boolean) Table …

Can someone please tell me why the results of my query are not appearing in my console application? I have a feeling it is something wrong with the console.writeline or readline [CODE]Imports System.Data Imports System.Data.SqlClient Module Module1 Private Property Sql As String Sub Main() Dim ConnString As String = "Data …

Hello. I hava DAO classes to access tables of a Derby db. My DAO's all implement there own interface. I knew I would need to learn what this was. Is anyone farmiliar with how an application would use an interface for the DAO classes ? I use xml properties to …

[CODE]Private Sub frmCust_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load dbSource = "Data Source=xx-B4C521B850\SQLEXPRESS;Initial Catalog=TT;Integrated Security=True" con.ConnectionString = dbSource con.Open() da.Dispose() sql = "Select * from Cust" da = New SqlClient.SqlDataAdapter(sql, con) da.Fill(ds, "Cust") da.Update(ds, "Cust") con.Close() MaxRows = ds.Tables("Cust").Rows.Count inc = -1 End Sub [/CODE] if after …

All, I have a simple question. What is the standard procedure for retrieving form values via POST method in a web form? Perl can be extremely awkward for web programming, I'd normally use something else, but in this case I need to use Perl for the CPAN module. Anyway, back …

If you look at a bunch of files with the Details view, file types known to Windows have a greater description of the file in the Type column. For example, .exe is an Application, .txt is a Text Document, and .cpp is C++ Source. If they are not known, Windows …

Hi, I want to use a template function that is used to convert strings to numeric types in a non-templated class. I have: [CODE] class Reader { ... template <class T> T ConvertString (const std::string str); }; [/CODE] Is it possible for me to define the template function in an …

I am creating a phonebook and i have some problems. I get everything to work except im having trouble deleting an entry and also when i add an entry im having trouble sorting it in alphabetical order. This is my code below if someone can help it would be much …

I have some doubt regarding how class variable gets initialized, both static and non static. I mean, suppose I have a class like below. [CODE] public class MyClass{ public static HashMap<String,Buddy> buddiesMap= new HashMap<String,Buddy>(); public static ArrayList<String> buddiesList=new ArrayList<String>(); public static HashMap<String,ImageIcon> avatarMap=new HashMap<String, ImageIcon>(); public static ServerConnection con=new ServerConnection(); …

Hi Say I want to write a header file as an exercise. It will contain a bunch of functions and some constants. Q1. I noticed that the standard header files only contain the function prototypes. a> Where are the actual functions? b> How do I write a header file such …

I wrote a method to read in a txt file and then return the value(s) line by line. However, the value(s) are being returned as such - [Ljava.lang.String;@6f579a30. I would have expected something different. The .txt file I'm reading in has value(s) in the file like this... A B C …

I am trying to save an integer matrix to the csv file. My code is listed as follows. [CODE]try { FileWriter writer = new FileWriter("test.csv"); for(int i = 0; i < row; i++) { for (int j=0; j<(column-1); j++) { writer.append(Matrix[i][j]); writer.append(','); } writer.append(Matrix[i][j]); writer.append('\n'); writer.flush(); } writer.close(); } catch(Exception …

This program refuses to take foom as input, yet if I were to put "matrix.txt" into the function instead of foom, it would work fine. [CODE]#include <fstream> #include <iterator> #include <sstream> #include <vector> #include <string> // needed? using namespace std; typedef vector<double> Vec; typedef vector<Vec> Mat; Mat readMatrix(string foom){ Mat …

Hi I am implementing a "Star Craft" game and I have troubles on my A* algorithm. I followed the steps in [URL="http://www.policyalmanac.org/games/aStarTutorial.htm"]here[/URL] and created my own implementation using object oriented c++. Now when I have say 32 x 32 grid, and I need to move 1 unit, it takes for …

Hi All, Can you please help me to understand why the following code is behaving this way? I think both outputs should be 1 ( 1 means const T), but its not!! [CODE] template <typename T> struct IsConst{ enum {isConst = 0}; }; template <typename T> struct IsConst<const T>{ enum …

Suppose I have four classes in a package named T namely Main, A, B and C The class Main contains public methods which the classes outside package T access and Main class in turn communicate with other three classes and let some function to happen. Now I want only a …

Code::Blocks isn't working. I recently reinstalled to get a newer version and when I hit build I get the following error: [CODE]mingw32-g++.exe -Wall -g -I"C:\Program Files\CodeBlocks\MinGW\include" -c D:\Programming\C++\TESTINGOPENGL\main.cpp -o obj\Debug\main.o Execution of 'mingw32-g++.exe -Wall -g -I"C:\Program Files\CodeBlocks\MinGW\include" -c D:\Programming\C++\TESTINGOPENGL\main.cpp -o obj\Debug\main.o' in 'D:\Programming\C++\TESTINGOPENGL' failed.[/CODE] Please help!

Good Day All I am accessing an FDB Database with a WCF service. locally it was working fine, but now i want to access the service that is stting on a remote location. my Connection string looks like this [CODE] <add name="FDBConnectionString" connectionString="User=SYSDBA;Password=masterkey;Database=\\192.168.03.14\Database\SCHOOL.fdb;DataSource=192.168.03.14; Port=3050;Dialect=3; Charset=NONE;Role=;Connection lifetime=15;Pooling=true; MinPoolSize=0;MaxPoolSize=50;Packet Size=8192;ServerType=0;"/>[/CODE] i get …

[CODE]using System; public class UserMainCode { //Assume following return types while writing the code for this question. public static int[][] output1 = new int[9][]; public static void soduko() { } public static void SolveSudoku(int[,] input1) { input1=new int[9,9]; int i,j; for(i=0;i<9;i++) for(j=0;j<9;j++) output1[i,j]=input1[i,j]; soduko(); //Write code here } }[/CODE] im …

Just some random thoughts :) DOS runs natively in 16-bit Real Mode. EMS, and Himem, memory managers (to my best knowledge) provide their services by jumping in and out of Protected Mode. 32-Bit Protected Mode programs use a DOS extender to jump into Protected Mode, and provide 32-Bit services. A …

[CODE]#include"stdio.h" #include"conio.h" #include"alloc.h" struct node { int age; char name[25]; struct node * next; }; void add_end(struct node **q); void display(struct node *); void main() { struct node *p; p=NULL; add_end(&p); //display(p); getch(); return; } add_end(struct node **q) { struct node *temp,*r; temp=*q; if(*q==NULL) { temp=(struct node *)malloc(sizeof(struct node)); printf("\nEnter …

Dear Friends, I have a question in security programming. As all of us know, when we have a database with passwords or anything sensitive, we would like to encrypt it so it is not readable by other. Now I want to know, which of the method is secured or less …

Code Giving Error is Given Below, and Error is 1) Make Sure your method arguments are in right format 2) When converting a string to DateTime, prase the string to take the date before putting each variable into the DateTime Object [CODE] using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; …

I created the following package AccBal. [CODE]package AccBal; public class AccountBalance { private String Name; private double Balance; public void setData(String name, double balance) { Name=name; Balance=balance; } public void displayBalance() { System.out.println("The Account Balance of " + Name + " is $"+Balance); } } [/CODE] Then I created a …

Hi, Why is it that when I remove(commented out) the inner j for loop and all it's contents, the cmd prints out my desired output. However, replacing back the inner for loop, it gives an incorrect output -> my counter values are wrong when printed. Can anyone spot what I …

Hello friends, I am having a small problem, i have already designed a chat application, the chat works fine over a local network but now I want to use it over the internet. Logically the program should but what happened is that to get the IP I have used [code] …

Hi I have never come across such code before. I can't make out what it is [CODE]SockerManager::SocketManager() : sockets(0), events(0), nSockets(0) {}[/CODE] Could someone tell me what does something like a() : b() mean? Thanks Devesh

how can i crop an image based on the size of my picturebox? my picturebox's size mode is normal, i want to have for example, a 100 x 100 image using a 100 x 100 picture box, also i can drag the the image inside the picturebox so that i …

Hi everyone, I am new to java enterprise edition and used Eclipse previously. I need to integrate apache maven with my eclipse. I saw a few tutorials like the one [url]http://www.eclipse.org/m2e/[/url] , and i tried to follow it but i could find the other option in the import dialogue. I …

hey there, I have this java 3D home assignment I need help with. I would greatly appreciate it if someone could direct me to a solution. I need to build create a 3 D digital clock and add some key navigation to it. I managed to add the key navigation …

I have the following code. It's a memcmp implementation for the Renesas R5F Embedded Chip family and I'm trying to test it. [code] #include <stdio.h> #include <time.h> #include <stdlib.h> #include <math.h> #include <stdbool.h> #include <stdlib.h> #include <assert.h> typedef char SInt8; typedef unsigned char UInt8; SInt8 one_net_memcmp(const void *vp1, const void …

Hi this is my first post so hello everybody, I've recently been exploring the uses of linq to use for comparisons,but really need a bit of a kickstart. Say for instance i have a listview populated with numbered names and I want to put up a message box if certain …

Hello, i tried to hack my USB MODEM so that i have unlimited INTERNET connection but i failed, any one having an idea on how to do it?

I am working with existing VB.NET code for a Windows Application that uses StreamWriter and Serializer to output an XML document of transaction data. Code below. [COLOR="Green"] [CODE]Private TransactionFile As ProjectSchema.TransactionFile Dim Serializer As New Xml.Serialization.XmlSerializer(GetType(ProjectSchema.TransactionFile)) Dim Writer As TextWriter Dim FilePath As String Writer = New StreamWriter(FilePath) Serializer.Serialize(Writer, TransactionFile) …

I have a Plain Text matrix file (called q.txt): [CODE]1 0 0 0 2 0 0 1 1 0 0 1 1 1 1[/CODE] which I would like to read into a matrix, which is a vector containing vectors (which contain doubles). My current codes yields the error "newReader.cpp:22: error: …

[code] #include <stdio.h> #if 1 //! Set Pin string const char* const ONCLI_SET_PIN_CMD_STR = "set pin"; #endif const char* const SINGLE_APP_STRINGS[] = { ONCLI_SET_PIN_CMD_STR }; int main() { printf("%s\n", SINGLE_APP_STRINGS[0]); getchar(); // pause return 0; } [/code] Line 12 Error message... [code=text] 12|error: initializer element is not constant 12|error: (near …

hello ! i have a program id like to code , and it uses from 3 upto 15 members of a structure , id like to ask , [COLOR="red"][I]1,[/I][/COLOR] is there a way to not define all members of a structure at the start but add members as needed ? …

hello, I'm currently writing a program to write a website easier, but i don't know, how output " to a file? thank you very much for help

Hello im makin a program in C tht will query my database when i use the following code i get an error "segmentation fault" [code] //retreive configuration items from the mysql database mysql_query(conn, "SELECT callcost FROM imds.testset Where callcost BeTWEEN 900 and 1000;"); results = mysql_store_result(conn);[/code] even when i use …

Hello everyone Can anyone help me with codes to calculate sum of numbers in the diagonal of a 2 dimensional matrix array. Please help. (a b c d e f g h i j j k l m n o p q r s)

Is there a more efficient way to do this? [CODE] vector<int> myvec; vector<int>::iterator it; /////// // Count # of iterations int i = 0; while ( it != myvec.end() ) { ++it; ++i; } [/CODE] Just seems expensive to me.

[code] using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; namespace FileApp { class Program { static void Main(string[] args) { Console.WriteLine("***** Simple IO with the File Type ******"); string[] myTasks = { "asdf", "qwerty", "awdx", "1234" }; // Write out all data to file on C drive. File.WriteAllLines(@"C:\tasks.txt", …

hi all, I have this minor problem which is making me go cranky at the mo.. Can't think straight, need some insights to what I can do... Below is the code which I am working on which takes the test sample values stored in my test 2D array subtracts the …

Hi.... I am a C# language beginner.Could someone explain me about CLS(Common Language Specification or Common Language Subset). I would like to know about CLS is used in which conditions and what is the job of CLS. Please help me... Thanks

when i run my project in java. i keep getting this stuff. No Console ..... I dont know how to get console in eclipse. here is my code. [code] import java.io.*; public class WordGame { public WordGame() { } public static void main (String args[]) { String WordGuess; WordJudge gm …

Hi all, i have different modules developed so far, and a main script needs to call the modules based on user's choice. will doing like this work?? using raw_input(), i wait for user choice, and once a choice is made, corresponding module is called. if main.py, does an 'import xxx.py' …

Guys, Have a look... [CODE] File.Delete("C:\\hi.txt");[/CODE] This function is used for deleting a specific file right? But I m unable to delete it? Is there my little mistake?